118121 has 8 divisors (see below), whose sum is σ = 125664. Its totient is φ = 110880.

The previous prime is 118093. The next prime is 118127. The reversal of 118121 is 121811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118121 - 2⁶ = 118057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118096 and 118105.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 118121.

It is not an unprimeable number, because it can be changed into a prime (118127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730 + ... + 1796.

It is an arithmetic number, because the mean of its divisors is an integer number (15708).

2¹¹⁸¹²¹ is an apocalyptic number.

It is an amenable number.

118121 is a deficient number, since it is larger than the sum of its proper divisors (7543).

118121 is an equidigital number, since it uses as much as digits as its factorization.

118121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151.

The product of its digits is 16, while the sum is 14.

The square root of 118121 is about 343.6873579287. The cubic root of 118121 is about 49.0654408152.

Adding to 118121 its reverse (121811), we get a palindrome (239932).

The spelling of 118121 in words is "one hundred eighteen thousand, one hundred twenty-one".